The Mark of Athena: The Graphic Novel (Heroes of Olympus Book 3)
Many websites host PDFs that use AI art generators (Midjourney, DALL-E, etc.) to create rough, inconsistent images of Percy and Annabeth in Tartarus. These are often poorly bound, have spelling errors, and completely miss the emotional beats of the book. Worse, these sites are often riddled with malware. house of hades graphic novel pdf